X-Git-Url: https://sipb.mit.edu/gitweb.cgi/wiki.git/blobdiff_plain/feae757ba741e8672fc616e7aa24744e0c35ebe9..2e92526dbf7d4561ad94e693089c4bb9949c3055:/doc/zephyr.mdwn

diff --git a/doc/zephyr.mdwn b/doc/zephyr.mdwn
index 2dc6fcb..97b3d35 100644
--- a/doc/zephyr.mdwn
+++ b/doc/zephyr.mdwn
@@ -86,6 +86,20 @@ instance with the -i option to zwrite:
 A message without an instance specified will default to the instance
 “personal”.
 
+You can send zephyrs to individuals (as opposed to classes) with:
+
+    :zwrite USERNAME
+
+### Aside: zephyr triplets
+
+All messages are actually sent to a "zephyr triplet" -- a class, instance, and recipient. Subscriptions are also made to zephyr triplets. The recipient can be either "*" -- to indicate a broadcast message -- or a specific individual.
+
+When sending, the default class is "message", instance is "personal", and recipient is "*". `zwrite` supports sending to arbitrary triples with `:zwrite -c CLASS -i INSTANCE USERNAME` -- the two examples above use the defaults for the parts that aren't specified.
+
+For subscriptions, the class must be specified. You can specify all instances on a class with "\*", or specify just one instance. You can only sub to recipient "\*" or your own personals (indicated by "%me%").)
+
+### Common classes
+
 Some common classes include:
 
 <strong>help</strong>:
@@ -182,5 +196,4 @@ to your `~/.environment` file if you use `tcsh` or
     ZEPHYR_CLIENT=false
 
 to your `~/.bash_environment` if you use `bash`. This will cause your
-shell to launch the `false` executable instead of `zwgc` which does
-nothing.
+shell to launch the `false` executable instead of `zwgc`, thereby disabling it ('false' does nothing).